摘要:
The invention is directed to novel combinations of muscle-specific enhancers and promoter elements useful for achieving persistent expression in the muscle or myocyctes. The muscle-specific promoter elements are derived from a muscle creatine kinase promoter, a troponin I promoter, a skeletal alpha-actin promoter, or a desmin promoter. The muscle-specific enhancer elements are derived from either troponin I internal regulatory elements, muscle creatine kinase enhancers, or desmin enhancers.
摘要:
The present invention relates to transgene expression systems, related compositions comprising the transgene expression systems, and methods of making and using them. Preferred systems employ an adenovirus transgene expression vector comprising DNA encoding a transgene which codes for a desired product operably linked to expression control sequence, and at least a portion of the adenovirus E3 region and certain portions of the E4 region. The E4 portions comprise the open reading frame sequence known as E40RF3 and at least one other portion of E4. Preferably the E4 portion of the vector (or “E4 cassette”) includes E40RF3 and at least one other portion selected from E40RF4, E40RF6/7 and E40RF3/4. The invention has a number of important features including improving persistency of transgene expression in a desired host cell. The transgene expression systems of the present invention are useful for a variety of applications including providing persistent cellular expression of the transgene in vitro and in vivo.
摘要:
The present invention relates to novel adenovirus vectors for use in gene therapy which are designed to prevent the generation of replication-competent adenovirus (RCA) during in vitro propagation and clinical use. The invention also provides methods for the production of the novel virus vectors. These vectors maximize safety for clinical applications in which adenovirus vectors are used to transfer genes into recipient cells for gene therapy.
摘要:
A chimeric adenoviral vector is provided that comprises nucleotide sequence of a first adenovirus, wherein at least one gene of said first adenovirus encoding a protein that facilitates binding of said vector to a target mammalian cell, or internalization thereof within said cell, is replaced by the corresponding gene from a second adenovirus belonging to subgroup D, said vector further comprising a transgene operably linked to a eucaryotic promoter to allow for expression therefrom in a mammalian cell. Additionally, a method of delivering transgenes to target mammalian cells, particularly airway epithelial cells, is provided.
摘要:
The invention is directed to novel combinations of liver specific enhancers and promoter elements for achieving persistent transgene expression in the liver. The liver specific enhancer elements may be derived from either the human serum albumin, prothrombin, α-1microglobulin or aldolase genes in single copies or in multimerized form linked to elements derived from the cytomegalovirus intermediate early (CMV), α-1-antitrypsin or albumin promoters. In a preferred embodiment of the invention, an adenoviral vector comprising a liver specific enhancer/promoter combination operably linked to a transgene is administered to recipient cells. In other embodiments of the invention, adeno-associated viral vectors, retroviral vectors, lentiviral vectors or a plasmid comprising the liver specific enhancer/promoter combination linked to a transgene is administered to recipient cells. Also within the scope of the invention are promoter elements derived from the human prothrombin gene and the β-fibrinogen gene.
摘要:
Adenoviral vectors which contain deletions of the early regions and/or late genes provide efficient delivery and expression of foreign nucleic acids of interest to patients. These vectors have a particular use in the treatment of cystic fibrosis patients. Furthermore, PAV vectors provide for a second generation of adenoviral vectors that contain the 5' ITR's, the packaging signal and the E1A enhancer. Other adenoviral vectors contain a deletion of the E1 region or a deletion of E4 but retain orf3 or orf6, and can either retain or delete the E3 region.
摘要:
The present invention relates to novel adenovirus vectors for use in gene therapy which are designed to prevent the generation of replication-competent adenovirus (RCA) during in vitro propagation and clinical use. The invention also provides methods for the production of the novel virus vectors. These vectors maximize safety for clinical applications in which adenovirus vectors are used to transfer genes into recipient cells for gene therapy.
摘要:
In accordance with the subject invention, combination therapies can be used to modulate a patient's immune response in order to prevent, delay and/or reverse type 1 diabetes.